(n) When, before going out to the local gay club, a man rubs one out and lets a little bit of the ejaculate dry on an article of clothing. The smell is instantly noticed by the heightened senses of the patrons at the bar and he is now their prey.

Friend 1: "Dude, why am I so popular in here tonight?"
Friend 2: "It's because of the cum chum on your jeans!"
Friend 1: "That's all it takes? Guess I'll use some cum chum in the future!"